<template>
  <el-menu
    default-active="1-4-1"
    class="el-menu-vertical-demo"
    background-color="#545c64"
    text-color="#fff"
    active-text-color="#ffd04b"
    @open="handleOpen"
    @close="handleClose"
    :collapse="isCollapse"
  >
    <h3>{{ isCollapse ? "后台" : "酒店管理系统" }}</h3>
    <el-menu-item
      @click="clickMenu(item)"
      v-for="item in noChildren"
      :index="item.path"
      :key="item.path"
    >
      <i :class="'el-icon-' + item.icon"></i>
      <span slot="title">{{ item.label }}</span>
    </el-menu-item>
    <el-submenu v-for="item in hasCildren" :index="item.label" :key="item.path">
      <template slot="title">
        <i :class="'el-icon-' + item.icon"></i>
        <span slot="title">{{ item.label }}</span>
      </template>
      <el-menu-item-group v-for="subItem in item.children" :key="subItem.path">
        <el-menu-item @click="clickMenu(subItem)" :index="subItem.path">{{
          subItem.label
        }}</el-menu-item>
      </el-menu-item-group>
    </el-submenu>
  </el-menu>
</template>

<style lang="stylus" scoped>
.el-menu-vertical-demo:not(.el-menu--collapse) {
  width: 200px;
  min-height: 400px;
}
.el-menu {
  height: 100vh;
  border: none;
  h3 {
    color: #fff;
    text-align :center;
    line-height: 48px;
  }
}
</style>

<script>
export default {
  data() {
    return {
      menu: [
        {
          path: "/",
          name: "home",
          label: "首页",
          icon: "s-home",
          url: "Home/Home",
        },
        {
          label: "基础数据",
          icon: "location",
          children: [
            {
              path: "/type",
              name: "type",
              label: "房间类别",
              icon: "setting",
              url: "Type/Type",
            },
            {
              path: "/room",
              name: "room",
              label: "房间信息",
              icon: "setting",
              url: "Room/Room",
            },
            {
              path: "/customer",
              name: "customer",
              label: "客户信息",
              icon: "setting",
              url: "Customer/Customer",
            },
            {
              path: "/checkinList",
              name: "checkinList",
              label: "入住信息",
              icon: "setting",
              url: "Checkin/Checkin",
            },
            {
              path: "/checkoutList",
              name: "checkoutList",
              label: "退房信息",
              icon: "setting",
              url: "Checkout/Checkout",
            },
            {
              path: "/dateDiscount",
              name: "dateDiscount",
              label: "节日折扣",
              icon: "setting",
              url: "DateDiscount/DateDiscount",
            },
            {
              path: "/wayDiscount",
              name: "wayDiscount",
              label: "渠道折扣",
              icon: "setting",
              url: "WayDiscount/WayDiscount",
            },
          ],
        },
        {
          label: "业务管理",
          icon: "video-play",
          children: [
            {
              path: "/checkin",
              name: "checkin",
              label: "入住",
              icon: "setting",
              url: "Checkin/Checkin",
            },
            {
              path: "/checkout",
              name: "checkout",
              label: "退房",
              icon: "setting",
              url: "Checkout/Checkout",
            },
          ],
        },
        {
          label: "系统管理",
          icon: "user",
          children: [
            {
              path: "/user",
              name: "user",
              label: "用户",
              icon: "setting",
              url: "User/User",
            },
            {
              path: "/role",
              name: "role",
              label: "角色",
              icon: "setting",
              url: "Role/Role",
            },
          ],
        },
      ],
    };
  },
  methods: {
    handleOpen(key, keyPath) {
      console.log(key, keyPath);
    },
    handleClose(key, keyPath) {
      console.log(key, keyPath);
    },
    clickMenu(item) {
      this.$router.push({
        name: item.name,
      });
      this.$store.commit("selectMenu", item);
    },
  },
  computed: {
    noChildren() {
      return this.menu.filter((item) => !item.children);
    },
    hasCildren() {
      return this.menu.filter((item) => item.children);
    },
    isCollapse() {
      return this.$store.state.tab.isCollapse;
    },
  },
};
</script>
